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Merck Chemicals (Shanghai) Co., Ltd. is the subsidiary of the globally operating group Merck KGaA, Darmstadt (Germany) and provides Chinese market with high quality life science and chemical products and services
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Sodium tartrate dihydrate, chemically known as disodium hydrogen tartrate dihydrate, is a versatile inorganic compound widely utilized across various industrial and laboratory sectors. Primarily recognized for its role as a primary standard in analytical chemistry, this white crystalline powder serves as an essential reference material for the precise calibration of volumetric glassware and titration processes. Its high purity and stable stoichiometric composition make it ideal for determining the exact concentration of sodium hydroxide solutions, ensuring accuracy in quantitative analysis within quality control laboratories.
Beyond analytical applications, sodium tartrate dihydrate finds significant utility in the textile and dyeing industries. It acts as a crucial leveling agent and retarding agent during the dyeing of wool and nylon fabrics. By moderating the rate at which dyes are absorbed by fibers, it helps achieve uniform color distribution, preventing uneven staining or blotching that can compromise product quality. Additionally, it is employed in electroplating baths, where it functions as a complexing agent to stabilize metal ions and improve the smoothness and adherence of deposited metal layers on substrates.
In the pharmaceutical sector, while less common than other tartrates, it may be used as an excipient or buffering agent in specific formulations due to its mild alkalinity and solubility characteristics. It also plays a role in the production of certain ceramics and as a component in fire extinguishing agents.
Regarding safety and handling, sodium tartrate dihydrate is generally considered non-flammable and of low toxicity. However, standard laboratory precautions should always be observed. Avoid inhalation of dust particles and prevent direct contact with eyes or skin, as irritation may occur. In case of ingestion, seek immediate medical attention. Storage should be conducted in a cool, dry place away from strong acids and oxidizing agents to maintain chemical stability. Proper ventilation is recommended during handling to minimize dust accumulation. Always consult the specific Safety Data Sheet (SDS) provided by the manufacturer for detailed emergency procedures and first aid measures tailored to your specific operational context.